64535100231 has 16 divisors (see below), whose sum is σ = 98346818304. Its totient is φ = 36874343424.

The previous prime is 64535100221. The next prime is 64535100241. The reversal of 64535100231 is 13200153546.

It is an interprime number because it is at equal distance from previous prime (64535100221) and next prime (64535100241).

It is not a de Polignac number, because 64535100231 - 2²² = 64530905927 is a prime.

It is a super-2 number, since 2×64535100231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64535100211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175456 + ... + 399818.

It is an arithmetic number, because the mean of its divisors is an integer number (6146676144).

Almost surely, 2^64535100231 is an apocalyptic number.

64535100231 is a deficient number, since it is larger than the sum of its proper divisors (33811718073).

64535100231 is a wasteful number, since it uses less digits than its factorization.

64535100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238070.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 64535100231 its reverse (13200153546), we get a palindrome (77735253777).

The spelling of 64535100231 in words is "sixty-four billion, five hundred thirty-five million, one hundred thousand, two hundred thirty-one".